001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019package org.apache.reef.driver; 020 021import org.apache.reef.annotations.Provided; 022import org.apache.reef.annotations.Unstable; 023import org.apache.reef.annotations.audience.Private; 024import org.apache.reef.driver.evaluator.EvaluatorRequest; 025 026import java.util.Set; 027 028/** 029 * Represents a flexible preemption request: It contains: 030 * <p> 031 * <ol> 032 * <li>a set of EvaluatorRequests that the resource manager wants to have satisfied and also</li> 033 * <li>a set of Evaluators it will choose to kill if the request isn't satisfied otherwise.</li> 034 * </ol> 035 * <p> 036 * NOTE: This currently not implemented. Consider it a preview of the API. 037 */ 038@Private 039@Provided 040@Unstable 041public interface FlexiblePreemptionEvent extends PreemptionEvent { 042 043 /** 044 * @return the set of EvaluatorRequests that the underlying resource manager seeks to satisfy. 045 */ 046 Set<EvaluatorRequest> getEvaluatorRequest(); 047}